1// -*- C++ -*-
2
3// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the terms
7// of the GNU General Public License as published by the Free Software
8// Foundation; either version 3, or (at your option) any later
9// version.
10
11// This library is distributed in the hope that it will be useful, but
12// WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14// General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23// <http://www.gnu.org/licenses/>.
24
25// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
26
27// Permission to use, copy, modify, sell, and distribute this software
28// is hereby granted without fee, provided that the above copyright
29// notice appears in all copies, and that both that copyright notice
30// and this permission notice appear in supporting documentation. None
31// of the above authors, nor IBM Haifa Research Laboratories, make any
32// representation about the suitability of this software for any
33// purpose. It is provided "as is" without express or implied
34// warranty.
35
36/**
37 * @file types_traits.hpp
38 * Contains a traits class of types used by containers.
39 */
40
41#ifndef PB_DS_TYPES_TRAITS_HPP
42#define PB_DS_TYPES_TRAITS_HPP
43
44#include <ext/pb_ds/detail/basic_types.hpp>
45#include <ext/pb_ds/detail/type_utils.hpp>
46#include <utility>
47
48namespace __gnu_pbds
49{
50  namespace detail
51  {
52    template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
53    struct vt_base_selector
54    {
55      typedef value_type_base<Key, Mapped, Alloc, Store_Extra> type;
56    };
57
58    template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
59    struct types_traits
60    : public vt_base_selector<Key, Mapped, Alloc, Store_Extra>::type
61    {
62      typedef typename Alloc::template rebind<Key>::other key_allocator;
63      typedef typename key_allocator::value_type key_type;
64      typedef typename key_allocator::pointer key_pointer;
65      typedef typename key_allocator::const_pointer const_key_pointer;
66      typedef typename key_allocator::reference key_reference;
67      typedef typename key_allocator::const_reference const_key_reference;
68      typedef typename Alloc::size_type size_type;
69
70      // Extra value (used when the extra value is stored with each value).
71      typedef std::pair<size_type, size_type> 	comp_hash;
72
73      typedef integral_constant<int, Store_Extra> store_extra;
74      store_extra	m_store_extra_indicator;
75
76      typedef typename no_throw_copies<Key, Mapped>::indicator no_throw_copies;
77      no_throw_copies 	m_no_throw_copies_indicator;
78    };
79  } // namespace detail
80} // namespace __gnu_pbds
81
82#endif
83